AC/DC are an Australian rock band, formed in 1973 by brothers Malcolm and Angus Young. Although the band are commonly classified as hard rock and are considered a pioneer of heavy metal, they have always classified their music as rock and roll. To date they are one of the highest grossing bands of all time. AC/DC underwent several line-up changes before releasing their first album, High Voltage, in 1975. Membership remained stable until bassist Mark Evans was replaced by Cliff Williams in 1978 for the album...